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登錄TANK TEST
關注創建者:天悅 創建時間:2019-12-20

TANK TEST的實例教程
圖2.1.1 初始布料及morph模型
2.2Tank實驗模型
圖2.2.1 Tank有限元模型
使用氣體發生器容器試驗(TANK TEST)得到的質量流量曲線和溫度曲線。通過實驗模型建立的有限元模型如圖2.2.1所示。實驗容器的體積為60L,壓力為環境壓力1個標準大氣壓。
3 計算折疊
PAB的折疊是一項非常復雜的工作,該項目實現了嚴格按照實際的工藝圖紙進行折疊。這里只是介紹大致步驟,包括撐開、壓平、Z折,housing及relaxing.
3.1 撐開及壓平
撐開及壓平的目的是為了更好地Z折,使用*BOUNDARY_PRESCRIBED_MOTION_RIGID。
圖3.1.1 氣囊壓平的各個步驟及結果
3.3 Z折
Z折分為兩步:左右兩側z折和縱向z折。旋轉使用*BOUNDARY_PRESCRIBED_MOTION_RIGID,其設置方法可參考撐開操作。左右兩側的z折可以先進行一側,再進行另外一側,接觸設置時排除不相關的part即可。
3.4Housing
Housing是將折疊好的氣囊裝進盒子內,該盒子的最終形狀信息即作為*BOUNDARY_PRESCRIBED_FINAL_GEOMETRY的目標值,其初始只要包裹住折疊好的氣囊即可,并使用*BOUNDARY_SPC_SET固定氣發孔。
3.5 Relaxation
為了使氣囊在盒子內最終處于穩定狀態,還需要對其進行釋放的操作,使布料在盒子中盡量展開,盒子設置為剛體。如圖3.5.1所示。
圖3.5.1氣囊最終狀態及截面圖
4 材料應力應變曲線對標
介紹材料的拉伸、剪切、雙向拉伸的材料對標及其他參數的設置。
展開 3
March 17 | 11:00 AM (EDT)
Improving Spacecraft Fuel Tank Design: Reducing Sloshing in Rockets
Several commercial space launch systems have been developed recently that use powerful and reusable liquid-fueled rockets, requiring engineers to understand how to extend the lifespan of reusable rocket stages. Structural fatigue and failure of these reusable stages is caused by sloshing of the liquid fuel and oxidizer within pressurized tanks. Conventional testing of the sloshing behavior in these tanks under realistic conditions is extremely costly and nearly impossible.
展開 
TANK TEST的相關專題、標簽、搜索
TANK TEST的最新內容
見文獻:</p><p>The dimensions of the test tank are <em>L </em>= 6m, <em>B </em>= 1<em>.</em>5m and <em>Hmax </em>= 0<em>.</em>75m. All measurements</p><p>were performed at a water depth of 0<em>.
Design, fabrication and testing of a liquid hydrogen fuel tank for a long duration aircraft[J]. AIP Conference Proceedings, 2012. 1434(1): 773. DOI: 10.1063/1.4706990
[9]DENNIS T Y, LIM.
Conventional testing of the sloshing behavior in these tanks under realistic conditions is extremely costly and nearly impossible.
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圖2.1.1 初始布料及morph模型
2.2Tank實驗模型
圖2.2.1 Tank有限元模型
使用氣體發生器容器試驗(TANK TEST)得到的質量流量曲線和溫度曲線。通過實驗模型建立的有限元模型如圖2.2.1所示。實驗容器的體積為60L,壓力為環境壓力1個標準大氣壓。
However, this double milestone Air Jordan 2009 after testing various aspects, the mission was.
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